肚倍蚜生物学研究 Ⅰ.生活史

Biological Studies on the Du-ensiform Gall Aphid, Kaburagia rhusicola I. Life History

肚倍蚜的生活史很复杂,经历干母、无翅干雌、有翅干雌、无翅侨蚜、有翅性母和雌、雄性蚜等虫型,在两类寄生上交替寄生,再回复到干母,完成生活周期。有的发生4代侨蚜,一年完成生活周期,有的至少有8代侨蚜,两年完成生活周期,也许还有三年或三年以上才完成生活周期者。寄居夏寄主期间短,侨居冬寄主期间长。除性蚜外,交错世代多,重迭时间长。有翅虫型出现的时节较固定,但并非出自某一固定的世代。终年生长发育,无滞育或休眠。

The Du-ensiform gall caused by Kaburagia rhusicola is one of the Chinese gallnuts. In their whole life history they undergo following stages in order of seasons: the males and the females, fundatrix, wingless and winged fundatrigeniae on the first host (tree), Rhus potaninii, on which the galls are formed; and wingless aliencolae, winged sexuparae on the second host(moss), Erythrodontium leptothallum. Among the progeny of the same generation of fundatrix, some of them completed a life cycle in a year, some in two years, perhaps some in more than two years. The aphids live in a gall for about three months. The migration from the second hosts to the first hosts occur in spring and from the first hosts to the second hosts in the late summer. No diapause or dormancy can be found in the aphid's life history.